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$100+ Cheap flights from Philadelphia (PHL) to Houston

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/18. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — HOU
Feb 1 — Feb 81
Sun 2/1
Sun 2/8
1 adult, Economy
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Cheap flight deals from Philadelphia to Houston

Cheapest flights from Philadelphia to Houston
Explore the most affordable flight options available from Philadelphia to Houston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 2, 2026.

This American Airlines deal was found by Cheapflights users on 12/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:00 pmPHL - IAH
Nonstop3h 57mAmerican Airlines
Thu 1/16:00 amIAH - PHL
Nonstop3h 08mAmerican Airlines
Deal found 12/31$219
This American Airlines deal was found by Cheapflights users on 12/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:00 pmPHL - IAH
Nonstop3h 57mAmerican Airlines
Sat 1/35:00 amIAH - PHL
1 stop5h 14mAmerican Airlines
Deal found 12/31$279
This American Airlines deal was found by Cheapflights users on 12/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:00 pmPHL - IAH
Nonstop3h 57mAmerican Airlines
Fri 1/26:00 amIAH - PHL
Nonstop3h 08mAmerican Airlines
Deal found 12/31$310
This United Airlines deal was found by Cheapflights users on 12/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/315:00 pmPHL - IAH
1 stop7h 12mUnited Airlines
Fri 1/212:25 pmIAH - PHL
Nonstop3h 16mUnited Airlines
Deal found 12/30$320
This Cheapflightsfares deal was found by Cheapflights users on 12/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/313:35 pmPHL - IAH
Nonstop3h 54mFrontier
Fri 1/211:29 amIAH - PHL
Nonstop3h 19mFrontier
Deal found 12/30$356
This American Airlines deal was found by Cheapflights users on 12/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:00 pmPHL - IAH
Nonstop3h 57mAmerican Airlines
Mon 1/56:00 amIAH - PHL
Nonstop3h 08mAmerican Airlines
Deal found 12/30$360
This Kiwi.com deal was found by Cheapflights users on 12/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/313:35 pmPHL - IAH
Nonstop3h 54mMultiple Airlines
Mon 1/56:55 pmIAH - PHL
1 stop13h 12mMultiple Airlines
Deal found 12/31$364
This Kiwi.com deal was found by Cheapflights users on 12/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/313:35 pmPHL - IAH
Nonstop3h 54mFrontier
Mon 1/57:24 pmIAH - PHL
Nonstop3h 19mFrontier
Deal found 12/31$374
This United Airlines deal was found by Cheapflights users on 12/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/315:00 pmPHL - IAH
1 stop8h 30mUnited Airlines
Mon 1/55:00 amIAH - PHL
1 stop8h 11mUnited Airlines
Deal found 12/31$410
This American Airlines deal was found by Cheapflights users on 12/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:00 pmPHL - IAH
Nonstop3h 57mAmerican Airlines
Sun 1/46:00 amIAH - PHL
Nonstop3h 08mAmerican Airlines
Deal found 12/31$414
This Southwest deal was found by Cheapflights users on 12/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:15 pmPHL - HOU
1 stop6h 05mSouthwest
Sat 1/35:55 pmHOU - PHL
1 stop5h 40mSouthwest
Deal found 12/31$443
This Southwest deal was found by Cheapflights users on 12/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:15 pmPHL - HOU
1 stop6h 05mSouthwest
Sun 1/45:30 amHOU - PHL
1 stop5h 45mSouthwest
Deal found 12/31$463

Find flight deals from Philadelphia to Houston

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to Houston (HO1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 2, 2026.

Round-trip from

$204
(Frontier)

One-way from

$100
(Kiwi.com)

Popular in

April

Cheapest in

September

Average price

$299
From Philadelphia to Houston
Search Deals
One-way flight from Philadelphia to Houston
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($38 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Philadelphia to Houston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 2, 2026.
Use the filters below to find and compare flights from Philadelphia to Houston that are best for you.

Fly from

Philadelphia

Fly to

Houston

Route

Depart

Return

Price

PhiladelphiaHouston

PHL - IAH

PHLIAH

Philadelphia

Sat 2/7

8:05 am-11:05 am

Nonstop4h 00m

Houston George Bush Intcntl

Tue 2/10

5:00 am-12:07 pm

1 stop6h 07m

$229

PhiladelphiaHouston

PHL - IAH

PHLIAH

Philadelphia

Wed 3/11

9:55 am-5:18 pm

1 stop8h 23m

Houston George Bush Intcntl

Wed 3/18

7:27 am-11:45 am

Nonstop3h 18m

$229

PhiladelphiaHouston

PHL - IAH

PHLIAH

Philadelphia

Sat 1/31

8:05 am-11:05 am

Nonstop4h 00m

Houston George Bush Intcntl

Sun 2/1

7:20 am-11:32 am

Nonstop3h 12m

$234

PhiladelphiaHouston

PHL - IAH

PHLIAH

Philadelphia

Sat 3/14

5:40 am-10:22 am

1 stop5h 42m

Houston George Bush Intcntl

Sat 3/21

5:23 am-10:55 am

1 stop4h 32m

$239

PhiladelphiaHouston

PHL - HOU

PHLHOU

Philadelphia

Wed 3/25

6:15 am-10:50 am

1 stop5h 35m

Houston Hobby

Sat 3/28

4:15 pm-11:30 pm

1 stop6h 15m

$239

PhiladelphiaHouston

PHL - IAH

PHLIAH

Philadelphia

Sat 3/21

6:55 am-12:45 pm

1 stop6h 50m

Houston George Bush Intcntl

Sat 3/28

5:08 pm-12:45 am

1 stop6h 37m

$239

PhiladelphiaHouston

PHL - IAH

PHLIAH

Philadelphia

Wed 2/18

12:44 pm-3:40 pm

Nonstop3h 56m

Houston George Bush Intcntl

Sun 2/22

7:20 am-2:19 pm

1 stop5h 59m

$240

PhiladelphiaHouston

PHL - HOU

PHLHOU

Philadelphia

Wed 5/13

6:20 am-2:55 pm

2 stops9h 35m

Houston Hobby

Sat 5/16

2:00 pm-10:15 pm

1 stop7h 15m

$244

PhiladelphiaHouston

PHL - IAH

PHLIAH

Philadelphia

Wed 2/18

5:55 pm-8:50 pm

Nonstop3h 55m

Houston George Bush Intcntl

Mon 2/23

5:00 am-2:19 pm

1 stop8h 19m

$244

PhiladelphiaHouston

PHL - IAH

PHLIAH

Philadelphia

Sat 1/17

5:00 pm-12:12 am

1 stop8h 12m

Houston George Bush Intcntl

Sat 1/24

6:43 pm-10:59 pm

Nonstop3h 16m

$244

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/31

Showing 1-10 of 41 results
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Best time to book a flight from Philadelphia to Houston

Have a flexible travel schedule? Discover the best time to fly to Houston from Philadelphia with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Philadelphia to Houston

How far ahead should I book a flight from Philadelphia to Houston?

Use this chart to determine the optimal time to book a round-trip flight from Philadelphia to Houston. Price data was last updated on December 26, 2025.

The best time to book flights from Philadelphia to Houston is 76 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Philadelphia to Houston?

Currently, October is the cheapest month in which you can book a flight from Philadelphia to Houston (average of $65). Flying from Philadelphia to Houston in December is currently the most expensive (average of $130). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PHL to HOU?

Find hourly flight availability from Philadelphia to Houston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 2, 2026.

One of the essential ways to save on airfare from Philadelphia to Houston is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 40% on airfare.

What is the cheapest day to fly from Philadelphia to Houston?

Use this chart to determine the cheapest time to fly round-trip from Philadelphia to Houston. Price data was last updated on October 5, 2025.

Travelers seeking maximum savings on their Philadelphia to Houston flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

The best insider tips for Philadelphia to Houston flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Philadelphia to Houston trip
Airlines
United Airlines

United's Economy Plus offers extra legroom, enhancing comfort on domestic flights.


United's MileagePlus allows pooling miles, beneficial for family travel.

Read more about United AirlinesBy Harriet Baskas
Spirit Airlines

Spirit's Big Front Seats offer 11 inches more legroom, ideal for added comfort.


Spirit's self-service bag drop saves time at the airport, enhancing efficiency.

Read more about Spirit AirlinesBy Daniel Scheffler
Airports
PHL

For quick access to Center City, use SEPTA regional rail from PHL. Stations are near Terminals A, B, C/D, and E/F.

Read more about PHLBy Mark Chesnut
IAH

For a quick ride to downtown Houston, take an Uber or Lyft from IAH. It's about a 25-minute drive.

Read more about IAHBy Evie Carrick
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Daniel Scheffler

Daniel Scheffler

Expert on Spirit Airlines

Daniel Scheffler

Daniel Scheffler

Daniel Scheffler is a travel writer, podcaster, and producer. Born in Africa, bred in Europe and now living in America he has traveled to 140 countries (and all 50 U.S. states). Plus he has stayed at over 2500 hotels across the globe. His original shows Everywhere and Without Maps (available on Spotify) showcase his beliefs, travel is about humanity and sharing that beauty. And thus it reminds you that you shouldn’t believe everything you think.

Read more
Evie Carrick

Evie Carrick

Expert on IAH

Evie Carrick

Evie Carrick

Evie Carrick is a writer and editor who has lived in five countries and traveled to over 50, with extensive experience flying around the world. She was born in Colorado, but has spent time flying to both coasts to visit family. She writes regularly for Travel + Leisure, BuzzFeed, and SKI and recently published seven travel journals with Simon & Schuster.

Read more
Mark Chesnut

Mark Chesnut

Expert on PHL

Mark Chesnut

Mark Chesnut

Mark Chesnut is a travel writer and public speaker with more than 30 years of experience. The 2019 winner of the NLGJA Excellence in Travel Writing Award, Mark is the author of the book “Prepare for Departure” and has covered air travel for multiple top consumer and trade media outlets.

Read more

Reviews of airlines servicing Houston

Get insights into the airlines that provide service to Houston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Houston. Reviews last updated January 2, 2026.
Peruse reviews from past customers who have flown with Southwest, United Airlines, and American Airlines from Philadelphia to Houston to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,254 reviews

Entertainment

7.5

Crew

8.6

Boarding

8.1

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,254 reviews
Southwest
8.0
Very good
4,254 reviews

Entertainment

7.5

Crew

8.6

Boarding

8.1

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,132 reviews
Southwest
8.0
Very good
4,254 reviews

Entertainment

7.5

Crew

8.6

Boarding

8.1

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,075 reviews
Southwest
8.0
Very good
4,254 reviews

Entertainment

7.5

Crew

8.6

Boarding

8.1

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Spirit Airlines
6.3
Okay
8,258 reviews
Southwest
8.0
Very good
4,254 reviews

Entertainment

7.5

Crew

8.6

Boarding

8.1

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Frontier
5.7
Fair
3,067 reviews
Southwest
8.0
Very good
4,254 reviews

Entertainment

7.5

Crew

8.6

Boarding

8.1

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to Houston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Philadelphia to Houston?

    Philadelphia (PHL), located 7.0 mi from the city center, is the airport you fly out of when you book flights from Philadelphia to Houston. 6 airlines have flights from Philadelphia to Houston on a regular basis. Booking flights from Philadelphia to Houston should not be difficult; the airport handles an average of 0 outbound flights to Houston per day.

  • How long is the flight from Philadelphia to Houston?

    A quick flight from Philadelphia to Houston can take about 4h. United Airlines provides one of the quickest options available for as low as $229. The distance from Philadelphia to Houston is about 1322 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Philadelphia to Houston round-trip?

    Flying on Spirit Airlines is currently your cheapest option to Houston, with prices starting at $86. Additional round-trip tickets that might be worth considering are offered by Frontier and Southwest, with the lowest prices starting at $109 and $171, respectively. These flights start at 73% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Philadelphia to Houston one-way?

    For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $56. Users have also found prices from $58 and $95 on Frontier and Southwest, respectively.

  • Can I find deals for flights from Philadelphia to Houston that include hotel bookings?

    Yes. In addition to deals on Philadelphia to Houston flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Philadelphia to Houston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to Houston.

  • Can I find deals for business class flights from Philadelphia to Houston?

    Yes. Cheapflights offers flight deals from Philadelphia to Houston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Philadelphia to Houston?

    Currently, October is the cheapest month in which you can book a flight from Philadelphia to Houston (average of $65). Flying from Philadelphia to Houston in December is currently the most expensive (average of $130). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Philadelphia to Houston

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Philadelphia to Houston

Discover the top 6 airlines that operate flights from Philadelphia to Houston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$105Average$200FlexibilityNo cancel feeOn-time65%
FrontierCheapest$112Average$206FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$171Average$310FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$213Average$411FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$221Average$379FlexibilityNo cancel feeOn-time69%
DeltaCheapest$236Average$310FlexibilityNo cancel feeOn-timeN/A

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